Contact material for vacuum circuit breaker

Details Contact material for vacuum circuit breaker Contact material for vacuum circuit breaker

1986-04-29

1988-11-15

Brody, Christopher W.

Alloys or metallic compositions

Chromium base

420495, 200266, C22C 900, C22C 2706

Patent

active

047848294

ABSTRACT:
A contact material for a vacuum circuit breaker of excellent current breaking property and voltage withstand capability can be made from an alloy composed of copper and boride of tantalum, or an alloy composed of copper, boride of tantalum and titanium, or an alloy composed of copper, chromium, and boride of tantalum.

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patent: 3859087 (1975-01-01), Backstrom
patent: 4302514 (1981-11-01), Kato et al.
patent: 4365994 (1982-12-01), Ray
patent: 4450135 (1984-05-01), Peters et al.
patent: 4457780 (1984-07-01), Osada et al.
patent: 4517033 (1985-05-01), Okumura et al.

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